package com.example.xln111.controller;

import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@RestController
public class UploadController {
        private SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

        @PostMapping("/upload")
        public String upload(MultipartFile uploadFile, HttpServletRequest req) {
            //String realPath = req.getSession().getServletContext().getRealPath("/uploadFile/");
            String realPath = "./uploadFile/";
            System.out.println("=========" + realPath);
            String format = sdf.format(new Date());
            File folder = new File(realPath + format);
            System.out.println("=========" + folder.getAbsolutePath());
            if (!folder.isDirectory()) {
                folder.mkdirs();
            }

            String oldName = uploadFile.getOriginalFilename();
            String newName = UUID.randomUUID().toString() + oldName.substring(oldName.lastIndexOf("."), oldName.length());
            System.out.println("========" + oldName + "\t" + newName);
            try {
                //uploadFile.transferTo(new File(folder,newName));
                uploadFile.transferTo(new File(folder.getAbsolutePath(), newName));
                String filePath = req.getScheme() + "://" + req.getServerName() + ":" + req.getServerPort()
                        + "/uploadFile/" + format + newName;
                return filePath;
            } catch (IOException e) {
                e.printStackTrace();
            }
            return "上传失败！";
        }
    }

